Ho-lee-crap. You're looking at the largest iceberg calving ever recorded — a whopping 7.4 cubic km (that's 1.77 mi3) hunk of ice, detaching itself from Greenland's Ilulissat glacier — captured by filmmaker James Balog. It's just one of the scenes in Balog's forthcoming film Chasing Ice, and it is remarkable to behold. »12/13/12 11:09am 12/13/12 11:09am